package com.itheima.ydd.interceptor;


import com.itheima.ydd.entity.SysUser;
import com.itheima.ydd.utils.JwtUtils;
import io.jsonwebtoken.Claims;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Slf4j
public class TokenInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        //获取前端传过来的token
        String token = request.getHeader("x-token");

        //使用工具类,判断token是否有效
        boolean flag = JwtUtils.verifyToken(token);
        if (!flag) {
            return false;
        }
        //解析token，获取id和手机号码，构造User对象，存入Threadlocal
        Claims claims = JwtUtils.getClaims(token);
        String id = (String) claims.get("id");
        String roleId = (String) claims.get("roleId");

        SysUser user = new SysUser();
        user.setId(id);
        user.setRole_id(roleId);
        UserHolder.set(user);
        return true;
    }
}
